Track app.signer transactions in TaskResult

[fubuloubu]

Overview

We need a hook to show whether a task triggered a transaction by app.signer for deeper integration with platform monitoring

Specification

The app.signer should be a part of the system registration flow, so that we can reference transactions by app.signer's .nonce in the task recorder interface, which will allow us to index further downstream what transactions that a signer has made during execution (after it has fully settled).

Since it may be the case that we have auto-update functionality in "smart receipts" further down the road, and also that transactions may not actually be fully "mined" by the time the task is completed, it seems smartest to reference by .nonce in this fashion and to wait until a finalization threshold to record properties from the final transaction result

Dependencies

n/a

[linear]

SBK-463 Track `app.signer` transactions in `TaskResult`